Daniel Xu <dxu@xxxxxxxxx> wrote: > On Thu, Mar 02, 2023 at 06:27:54PM +0100, Florian Westphal wrote: > > Add minimal support to hook bpf programs to netfilter hooks, > > e.g. PREROUTING or FORWARD. > > > > For this the most relevant parts for registering a netfilter > > hook via the in-kernel api are exposed to userspace via bpf_link. > > > > The new program type is 'tracing style' and assumes skb dynptrs are used > > rather than 'direct packet access'. > > [...] > > Hope all is well. Do you have any updates on this series? I'm keen to > start building on top of this work. Sorry, I was busy with other work so this got sidelined. I've pushed what I hav atm to https://git.breakpoint.cc/cgit/fw/bpf-next.git/log/?h=nf_bpf_hooks_07 I had no time so far to do the testing needed for a new official submission (e.g. bpf_link_info). Compared to last uapi this now has a "flags" member that could be used to indicate "need defrag" and so on. I hope I can submit this again early April.